<?php

/*
 +--------------------------------------------------------------------+
 | CiviCRM version 3.3                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2010                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2010
 * $Id$
 *
 */

require_once 'CRM/Pledge/DAO/PledgeBlock.php';

class CRM_Pledge_BAO_PledgeBlock extends CRM_Pledge_DAO_PledgeBlock 
{
    
    /**
     * class constructor
     */
    function __construct( ) 
    {
        parent::__construct( );
    }
    
    /**
     * Takes a bunch of params that are needed to match certain criteria and
     * retrieves the relevant objects. Typically the valid params are only
     * pledgeBlock id. We'll tweak this function to be more full featured over a period
     * of time. This is the inverse function of create. It also stores all the retrieved
     * values in the default array
     *
     * @param array $params   (reference ) an assoc array of name/value pairs
     * @param array $defaults (reference ) an assoc array to hold the flattened values
     *
     * @return object CRM_Pledge_BAO_PledgeBlock object
     * @access public
     * @static
     */
    static function retrieve( &$params, &$defaults ) 
    {
        $pledgeBlock = new CRM_Pledge_DAO_PledgeBlock( );
        $pledgeBlock->copyValues( $params );
        if ( $pledgeBlock->find( true ) ) {
            CRM_Core_DAO::storeValues( $pledgeBlock, $defaults );
            return $pledgeBlock;
        }
        return null;
    }
    
    /**
     * takes an associative array and creates a pledgeBlock object
     *
     * @param array $params (reference ) an assoc array of name/value pairs
     *
     * @return object CRM_Pledge_BAO_PledgeBlock object 
     * @access public
     * @static
     */
    static function &create( &$params ) 
    { 
        require_once 'CRM/Core/Transaction.php';
        $transaction = new CRM_Core_Transaction( );
        $pledgeBlock = self::add( $params );
        
        if ( is_a( $pledgeBlock, 'CRM_Core_Error') ) {
            $pledgeBlock->rollback( );
            return $pledgeBlock;
        }
        
        $params['id'] = $pledgeBlock->id;
        
        $transaction->commit( );
        
        return $pledgeBlock;
    }
    
    /**
     * function to add pledgeBlock
     *
     * @param array $params reference array contains the values submitted by the form
     *
     * @access public
     * @static 
     * @return object
     */
    static function add( &$params )
    {
        require_once 'CRM/Utils/Hook.php';
        
        if ( CRM_Utils_Array::value( 'id', $params ) ) {
            CRM_Utils_Hook::pre( 'edit', 'PledgeBlock', $params['id'], $params );
        } else {
            CRM_Utils_Hook::pre( 'create', 'PledgeBlock', null, $params ); 
        }
        
        $pledgeBlock = new CRM_Pledge_DAO_PledgeBlock( );
        
        //fix for pledge_frequency_unit
        require_once 'CRM/Core/BAO/CustomOption.php';
        $freqUnits = CRM_Utils_Array::value('pledge_frequency_unit', $params);
        
        if ( $freqUnits && is_array( $freqUnits ) ) {
            unset($params['pledge_frequency_unit']);
            $newFreqUnits = array();
            foreach ( $freqUnits  as $k => $v ) {
                if ( $v ) {
                    $newFreqUnits[$k] = $v;
                }
            }
            
            $freqUnits =  $newFreqUnits;
            if ( is_array($freqUnits) && !empty($freqUnits) ) {
                $freqUnits = implode(CRM_Core_BAO_CustomOption::VALUE_SEPERATOR,array_keys($freqUnits));
                $pledgeBlock->pledge_frequency_unit = $freqUnits;
            } else {
                $pledgeBlock->pledge_frequency_unit = '';
            }
        }
        
        $pledgeBlock->copyValues( $params );
        $result = $pledgeBlock->save( );
        
        if ( CRM_Utils_Array::value( 'id', $params ) ) {
            CRM_Utils_Hook::post( 'edit', 'PledgeBlock', $pledgeBlock->id, $pledgeBlock );
        } else {
            CRM_Utils_Hook::post( 'create', 'Pledge', $pledgeBlock->id, $pledgeBlock );
        }
        
        return $result;
    }
    
    /**
     * Function to delete the pledgeBlock
     *
     * @param int $id  pledgeBlock id
     *
     * @access public
     * @static
     */
    static function deletePledgeBlock( $id ) 
    {
        CRM_Utils_Hook::pre( 'delete', 'PledgeBlock', $id, CRM_Core_DAO::$_nullArray );
        
        require_once 'CRM/Core/Transaction.php';
        $transaction = new CRM_Core_Transaction( );
        
        $results = null;
        
        $dao     = new CRM_Pledge_DAO_PledgeBlock( );
        $dao->id = $id;
        $results = $dao->delete( );
        
        $transaction->commit( );
        
        CRM_Utils_Hook::post( 'delete', 'PledgeBlock', $dao->id, $dao );
        
        return $results;
    }

    /**
     * Function to return Pledge  Block info in Contribution Pages 
     * 
     * @param int $pageId contribution page id
     *
     * @static
     */
    static function getPledgeBlock( $pageID ) 
    {
        $pledgeBlock   = array( );
        
        $dao = new CRM_Pledge_DAO_PledgeBlock( );
        $dao->entity_table = 'civicrm_contribution_page';
        $dao->entity_id    = $pageID; 
        if ( $dao->find(true) ) {
            CRM_Core_DAO::storeValues($dao, $pledgeBlock );
        }
        
        return  $pledgeBlock;
    } 

    /**
     * Function to build Pledge Block in Contribution Pages 
     * 
     * @param int $pageId 
     * @static
     */
    function buildPledgeBlock( $form ) 
    {
        //build pledge payment fields.
        if ( CRM_Utils_Array::value( 'pledge_id', $form->_values ) ) {
            //get all payments required details.
            $allPayments = array( );
            $returnProperties = array( 'status_id', 'scheduled_date', 'scheduled_amount' );
            CRM_Core_DAO::commonRetrieveAll( 'CRM_Pledge_DAO_Payment', 'pledge_id', 
                                             $form->_values['pledge_id'], $allPayments, $returnProperties );
            //get all status
            require_once 'CRM/Contribute/PseudoConstant.php';
            $allStatus = CRM_Contribute_PseudoConstant::contributionStatus( null, 'name' );
            
            $nextPayment = array( );
            $isNextPayment = false;
            $overduePayments = array( );
            $now = date('Ymd');
            foreach( $allPayments as $payID => $value ) {
                if ( $allStatus[$value['status_id']] == 'Overdue' ) {
                    $overduePayments[$payID] = array( 'id'               => $payID ,
                                                      'scheduled_amount' => CRM_Utils_Rule::cleanMoney( $value['scheduled_amount']),
                                                      'scheduled_date'   => CRM_Utils_Date::customFormat( $value['scheduled_date'], 
                                                                                                          '%B %d') 
                                                      );
                } else if ( !$isNextPayment && 
                            $allStatus[$value['status_id']] == 'Pending' ) { 
                    //get the next payment.
                    $nextPayment =  array( 'id'               => $payID ,
                                           'scheduled_amount' => CRM_Utils_Rule::cleanMoney( $value['scheduled_amount']),
                                           'scheduled_date'   => CRM_Utils_Date::customFormat( $value['scheduled_date'], 
                                                                                               '%B %d') 
                                           );
                    $isNextPayment = true;
                }
            }
            
            //build check box array for payments.
            $payments = array( );
            if ( !empty( $overduePayments ) ) {
                foreach( $overduePayments as $id => $payment ) {
                    $key = ts("$%1 - due on %2 (overdue)", array( 1 => CRM_Utils_Array::value( 'scheduled_amount', $payment ),
                                                                  2 => CRM_Utils_Array::value( 'scheduled_date', $payment ) ) );
                    $payments[$key] = CRM_Utils_Array::value( 'id', $payment ); 
                }
            }
            
            if ( !empty( $nextPayment ) ) {
                $key = ts("$%1 - due on %2", array( 1 => CRM_Utils_Array::value( 'scheduled_amount', $nextPayment ),
                                                    2 => CRM_Utils_Array::value( 'scheduled_date', $nextPayment ) ) );
                $payments[$key] = CRM_Utils_Array::value( 'id', $nextPayment ); 
            }
            //give error if empty or build form for payment.
            if ( empty( $payments ) ) {
                CRM_Core_Error::fatal( ts( "Oops. It looks like there is no valid payment status for online payment." ) ); 
            } else {
                $form->assign('is_pledge_payment', true );
                $form->addCheckBox( 'pledge_amount', ts( 'Make Pledge Payment(s):' ), $payments );
            } 
        } else {

            $pledgeBlock = CRM_Pledge_BAO_PledgeBlock::getPledgeBlock( $this->_id );

            //build form for pledge creation.
            $pledgeOptions = array( '0' => ts('I want to make a one-time contribution'), 
                                    '1' => ts('I pledge to contribute this amount every') );
            $form->addRadio( 'is_pledge', ts('Pledge Frequency Interval'), $pledgeOptions,
                             null, array( '<br/>' ) );
            $form->addElement( 'text', 'pledge_installments', ts('Installments'), array('size'=>3) );
            
            if ( CRM_Utils_Array::value( 'is_pledge_interval', $pledgeBlock ) ) {
                $form->assign( 'is_pledge_interval', CRM_Utils_Array::value( 'is_pledge_interval', $pledgeBlock ));
                $form->addElement( 'text', 'pledge_frequency_interval', null, array('size'=>3) );
            } else {
                $form->add( 'hidden', 'pledge_frequency_interval', 1 ); 
            }
            //Frequency unit drop-down label suffixes switch from *ly to *(s)
            $freqUnitVals  = explode( CRM_Core_BAO_CustomOption::VALUE_SEPERATOR, $pledgeBlock['pledge_frequency_unit'] );
            $freqUnits = array( );
            $frequencyUnits = CRM_Core_OptionGroup::values( 'recur_frequency_units' );
            foreach ( $freqUnitVals as $key => $val ) {
                if ( array_key_exists( $val, $frequencyUnits )  ) { 
                    $freqUnits[$val] = CRM_Utils_Array::value('is_pledge_interval', $pledgeBlock) ? 
                        "{$frequencyUnits[$val]}(s)" : $frequencyUnits[$val];
                }
            }
            $form->addElement( 'select', 'pledge_frequency_unit', null, $freqUnits ); 
        }
    }
    
}
